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Critical · 9.0 CVE-2021-21962 EUVD-2021-9133GHSA-pcpq-5r7p-4983

A heap-based buffer overflow vulnerability exists in the OTA Update u-download functionality of Sealevel Systems, Inc. SeaConnect 370W v1.3…

Published Feb 4, 2022 · Updated Apr 15, 2025 · Assigned by talos

Description

A heap-based buffer overflow vulnerability exists in the OTA Update u-download functionality of Sealevel Systems, Inc. SeaConnect 370W v1.3.34. A series of specially-crafted MQTT payloads can lead to remote code execution. An attacker must perform a man-in-the-middle attack in order to trigger this vulnerability.

Affected products

VendorProductAffectedFixed
— Sealevel Sealevel Systems, Inc. SeaConnect 370W v1.3.34 —

References